work for longperiodsoftime without tiring - only stop for maintenance and can be self cleaning i.e. spot welders can clean their copper electrodes every few cycles

BMW use robots in their factory for some jobs after workers were falling ill with wrist and hand strains. Ergonomic issues of trying to press a water-tight seal into a door frame was damaging the worker, and therefore robots were used to aid them

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Drawbacks of Robots

poor mobility + lack of flexibility

humans can move freely between cells and do different tasks / robots require programming and may not be able to do the task / bulky and might not fit